⚖️ Weight & Mass
ounces to kilograms Converter
Convert ounces to kilograms instantly with a reference table.
Quick answer: To convert ounces to kilograms, multiply by 0.0283495. For example, 1 ounces = 0.0283495 kilograms. Use the calculator below for any value.
ounces to kilograms
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Common conversions
| ounces | kilograms |
|---|
Formula:
How to convert ounces to kilograms
1
Enter your value
Type the number of ounces you want to convert into the left box. The result in kilograms appears instantly in the right box. You can also type into the right box to convert in the other direction.
2
Use the swap button
Click the ⇄ Swap button to reverse the conversion — kilograms to ounces. Your current value carries across so you don't have to re-enter anything.
3
About ounces and kilograms
ounces and kilograms are common weight measurements.
💡 Did you know?
1 oz (avoirdupois) = 28.3495 g = 0.028349 kg. There are two ounce systems: the avoirdupois ounce (for everything except precious metals) and the troy ounce (for gold, silver, gemstones = 31.1035 g). Always check which ounce is meant in commodity trading.
📊 Common conversions at a glance
| ounces | kilograms |
|---|---|
| 0.5 | 0.01417 |
| 1 | 0.02835 |
| 2 | 0.0567 |
| 4 | 0.1134 |
| 8 | 0.2268 |
| 12 | 0.3402 |
Reviewed for 2026. ounces ↔ kilograms conversion factor verified against published reference data. Built by a UK-based qualified primary teacher and FA Level 2 coach as part of 247QuickTools' free utility-tools project.